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https://issues.apache.org/jira/browse/HADOOP-8202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13236952#comment-13236952
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Suresh Srinivas commented on HADOOP-8202:
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bq. Also, given that implementing the ProtocolTranslator interface is necessary
in order for RPC#getServerAddress to work, perhaps a better solution would be
to leave RPC#stopProxy as it is now, and change the protocol translators that
currently implement Closeable to instead implement ProtocolTrnaslator.
I want to look at the ProtocolTranslator and why it is needed in detail. In
this part of the code clearly ProtocolTranslator is not required.
> stopproxy() is not closing the proxies correctly
> ------------------------------------------------
>
> Key: HADOOP-8202
> URL: https://issues.apache.org/jira/browse/HADOOP-8202
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 0.24.0
> Reporter: Hari Mankude
> Assignee: Hari Mankude
> Priority: Minor
> Attachments: HADOOP-8202.patch, HADOOP-8202.patch
>
>
> I was running testbackupnode and noticed that NNprotocol proxy was not being
> closed. Talked with Suresh and he observed that most of the protocols do not
> implement ProtocolTranslator and hence the logic in stopproxy() does not
> work. Instead, since all of them are closeable, Suresh suggested that
> closeable property should be used at close.
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